Improvement in gas-regulators



l. ANDERSON Gas-Regulator.

Patentedlan. 26,1875.

Inl/@12 i012' Tui GRAPHIC CO. PHDYD-LiTH.39& L( PARK PLACE4N.Y.

UNITED STATES PATENT OEEroE.

JOHN ANnEEsoN, OE NEw YORK, N. Y.

IMPROVEMENT IN GAS-REGULATORS.

Specification forming part of Letters Patent No. 159,139, dated January 26, 1875; application led January 14, 1875.

To all whom tt may concern:

Be it known that I, JOHN ANDERSON, of the city, county, and State of New York, have invented a certain new and useful Improvement in Gas-Regulators,of which the following is a specification:

lhis invention is illustrated in the accompanying drawing, in which- Figure l represents a vertical central seotion. Fig. 2 is a horizontal section.

Similar letters indicate corresponding parts.

The invention consists in combining two or more gravitating valves of different diameter in a gas-regulator, in such a manner that different valves are presented to the gas in the variations of its pressure, and by this means the pressure is regulated withthe utmost nieety. y

The valves play up and down, under the influence of the gas, on a guide-stein, and when out of action rest upon a suitable seat and upon each other. The lower valve is perforated, so that gas can pass through it and act on the upper valve, which thereby is raised, and by this means a limited liow of gas is allowed to take place. When the pressure of the gas rises and becomes greater than can pass through the perforations of the lower valve, the latter' also is caused to rise, and the gas passes under it, whereby a superfluous low thereof is prevented. The valve-stein is tubular, its upper end being closed, and its lower end being open and exposed to the gas; and it is provided with discharge-holes at a point between the upper and lower valves, from which holes the gas issues, and assists or tends wholly to raise the upper valve.

In the drawing, the letter A designates the shell of my regulator, provided with an internal and an external screw-thread, whereby it is inserted in a gas-pipe. To the internal thread of the shell is fitted a ring, B, having the cross-bar C, and which constitutes the seat or support of the valves, hereinafter referred to. rIhe cross-bar C serves to support the valve-stem D and hold it in a central location. E F designate two valves, which I have here used in carrying out my invention. The valves are provided with a central aperture, through which the stem D is passed prediameter of the upper valve being less than that of the lower one; and the said upper valve, E, is allowed to rest directly upon the lower one, F, which rests upon the ring or seat B. rEhe stem D is held in place by a screw-thread, so that it is adjustable, and it has a head or cap, a, against which the valves strike whenthey are raised under the iniiuence of the gas, and thereby the extent of motion of the valves is controlled. The lower valve, F, is provided with holes or perforations b at points within the diameter of the upper valve, so that, when the gas passes through these perforations upward, it tends to raise or displace the said upper valve, and a flow of gas is had to the place of consumption. The under or lower valve, F, follows the upper valve when the pressure of the gas rises to a degree sufficient to raise the two valves together, and by this arrangement the flow ofthe gas is rendered uniform.

Instead of perforating the lower valve, F, as here shown, it also may be made solid, when the valve-stem D is made tubular and its lower end left open, while its top end is closed by the cap a. Inv the stem are discharge-holes c, which open between the two valves E F. The gas, passing up through the tubular stem D, discharges from the holes c to between the valves E F, and by its action the upper valve is displaced in like manner as described with reference to the perforations b in the valve F; or the perforated valve and tubular stem may be used together. In the latter case I am enabled to use three valves instead of two.

It may be remarked that my invention is applicable to gas-burners, as well as to the arrangement here shown, and I do not wish to restrict myself to the latter.

What I claim as new, and desire to secure by Letters Patent, is"- l. The combination of two or more gravitating valves, E F, of dili'erent diameter in a gas-regulator, substantially as herein de scribed.

2. The combination, in a gas-regulator, ofA

one or more perforated valves, F, With a solid have hereunto set my hand and seal this 8th valve, E, substantially as described. day of January, 1875.

3. The combination, in a gas-regulator, of two or more valves, E F, and a tubular stem, JOHN ANDERSON lL' S] D, having discharge-holes o, substantially as Vitnesses: described, for the object speeied. J. VAN SANTVOORD,

In testimony that I claim the foregoing I CHAs. WAHLERs. 

